My 05 g35x auto trans when warmed up it takes 5-8seconds for car to go into reverse from park. When car is cold it goes in almost immediately. This has been going on for about 15000 miles car has 131,000 on it
Any suggestions?

I would start by changing the fluid or at least checking the fluid level. Does it also take a lot of time to go into D if you skip by R and N?

changed fluid and filter will check on delay into Drive and answer you
thanks